Features a digital driver for vocal message equalization an automatic system for activating (DAT) transmission and a double transceiver channel

The standard frequency (channel one) is the same for all units so it is possible to talk directly with any other GSM DC GSM DAT GSM M-101A receive units surface M-105 Digital units and all previous surface systems (M103 – M104 – M105)

The double channel allows two different diver groups to operate in the same area limiting the interference between them

Please note that this product is USED and limited to quantity on hand and limited to specific sizes/colors. See website for details.

This gear has been inspected by our certified Scuba Instructors and has been found to be in Good to Very Good condition. Gear is for sale AS IS, but may be returned to us by prepaid postage for a 75% credit towards the purchase of any new item(s) of your choice within 30 days of purchase.